Here is a compact Google Ads report template for use in Google Data Studio.
You can use it to get a simple overview of;
- Avg. CPM
It has three line charts showing Impressions, Clicks, and CTR compared to the previous time period.
It also has a table showing the Campaign / Campaign Type / Ad Group / Ad Type and Impressions, Clicks, CTR, Conversions, and Avg. CPM.